naval engagement, medieval

Battle of Koyun Islands

Name: Battle of Koyun Islands
Location: Oinousses, Greece

Battle of Koyun Islands was a naval engagement fought in 1090 at Oinousses, in what is now Greece. Its exact site is not recorded; the atlas places it at Oinousses. It was part of Q3655978. The recorded result: Tzachas victory.

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Fought1090

WhereOinousses, Greece38.517N, 26.217E, placed at the location, approximate

OutcomeTzachas victory

BelligerentsForces of TzachasagainstByzantine Empire

Part ofQ3655978

Record

Date	1090 (year precision)
Place	Oinousses, Greece 38.517N, 26.217E
Kind	Naval engagement, medieval

Placed at Oinousses; the exact site is not recorded. with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Battle of Porto Delphino 1665, 8.8 km SW
Burning of the Ottoman flagship off Chios 1822, 20 km SW
Battle of Chios 1912, 20 km SW
Campaign of Chios 1827, 22 km SW
Battle of Chesma 1770, 22 km S

Elsewhere in 1090

Battle of Koyun Islands is one of 318 engagements of the 11th century in the atlas and one of 493 in present-day Greece.

Sources

Identity, coordinates, dates and the war from Wikidata Q85966865, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of the Oinousses Islands (1090), revision 1382098095, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.